﻿using HappyDining.HPDNServiceReference;
using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.IO;
using System.Linq;
using System.Threading.Tasks;
using Windows.Foundation;
using Windows.Foundation.Collections;
using Windows.UI.Xaml;
using Windows.UI.Xaml.Controls;
using Windows.UI.Xaml.Controls.Primitives;
using Windows.UI.Xaml.Data;
using Windows.UI.Xaml.Input;
using Windows.UI.Xaml.Media;
using Windows.UI.Xaml.Navigation;

// The Item Detail Page item template is documented at http://go.microsoft.com/fwlink/?LinkId=234232

namespace HappyDining
{
    /// <summary>
    /// A page that displays details for a single item within a group while allowing gestures to
    /// flip through other items belonging to the same group.
    /// </summary>
    public sealed partial class TableMenuDetailsPage : HappyDining.Common.LayoutAwarePage
    {
        public TableMenuDetailsPage()
        {
            this.InitializeComponent();
        }

        /// <summary>
        /// Populates the page with content passed during navigation.  Any saved state is also
        /// provided when recreating a page from a prior session.
        /// </summary>
        /// <param name="navigationParameter">The parameter value passed to
        /// <see cref="Frame.Navigate(Type, Object)"/> when this page was initially requested.
        /// </param>
        /// <param name="pageState">A dictionary of state preserved by this page during an earlier
        /// session.  This will be null the first time a page is visited.</param>
        protected override void LoadState(Object navigationParameter, Dictionary<String, Object> pageState)
        {
            // Allow saved page state to override the initial item to display
            if (pageState != null && pageState.ContainsKey("SelectedItem"))
            {
                navigationParameter = pageState["SelectedItem"];
            }

            // TODO: Assign a bindable group to this.DefaultViewModel["Group"]
            // TODO: Assign a collection of bindable items to this.DefaultViewModel["Items"]
            // TODO: Assign the selected item to this.flipView.SelectedItem

            Table table = (Table) navigationParameter;
            Debug.WriteLine("Navigated to table id: " + table.Id);
            pageTitle.Text = "" + table.TableName;

            init(table);

            
        }

        /// <summary>
        /// Preserves state associated with this page in case the application is suspended or the
        /// page is discarded from the navigation cache.  Values must conform to the serialization
        /// requirements of <see cref="SuspensionManager.SessionState"/>.
        /// </summary>
        /// <param name="pageState">An empty dictionary to be populated with serializable state.</param>
        protected override void SaveState(Dictionary<String, Object> pageState)
        {
           // var selectedItem = this.flipView.SelectedItem;
            // TODO: Derive a serializable navigation parameter and assign it to pageState["SelectedItem"]
        }

        public async Task init(Table table)
        {
            List<BillDetails> detailsList = new List<BillDetails>();
            
            Service1Client client = new Service1Client();

            Bill currentBill = await client.GetTableCurrentBillAsync(table);
            if (currentBill == null)
            {
                Debug.WriteLine("Current bill is NULL");
                return;
            }
            else {
                Debug.WriteLine("TableMenuDetailPage: current bill for " + table.TableName + ": bill-id=" + currentBill.Id);
            }
            detailsList = await client.GetBillDetailsAsync(currentBill);
            billDetailsList.ItemsSource = detailsList;
            tbSotien.Text = currentBill.Total + "VND";
            client.CloseAsync();

            
        }
    }
}
